vtkOpenGLRenderer.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkOpenGLRenderer.h,v $

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef __vtkOpenGLRenderer_h
#define __vtkOpenGLRenderer_h

#include "vtkRenderer.h"

class VTK_RENDERING_EXPORT vtkOpenGLRenderer : public vtkRenderer
{
protected:
  int NumberOfLightsBound;

public:
  static vtkOpenGLRenderer *New();
  vtkTypeRevisionMacro(vtkOpenGLRenderer,vtkRenderer);
  void PrintSelf(ostream& os, vtkIndent indent);

  void DeviceRender(void); 

  void ClearLights(void);

  void Clear(void);

  int UpdateLights(void);
  
protected:
  vtkOpenGLRenderer();
  ~vtkOpenGLRenderer();

  //BTX
  // Picking functions to be implemented by sub-classes
  virtual void DevicePickRender();
  virtual void StartPick(unsigned int pickFromSize);
  virtual void UpdatePickId();
  virtual void DonePick();
  virtual unsigned int GetPickedId();
  virtual double GetPickedZ();
  // Ivars used in picking
  class vtkGLPickInfo* PickInfo;
  //ETX
  double PickedZ;
private:
  vtkOpenGLRenderer(const vtkOpenGLRenderer&);  // Not implemented.
  void operator=(const vtkOpenGLRenderer&);  // Not implemented.
};

#endif

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